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2. Dust collector - Wikipedia

   en.wikipedia.org/wiki/Dust_collector

   Backward-blade fans - Backward-blade fans operate at higher tip speeds and thus are more efficient. Since material may build up on the blades, these fans should be used after a dust collector. Although they are noisier than radial-blade fans, backward-blade fans are commonly used for large-volume dust collection systems because of their higher ...

3. Prandtl–Meyer expansion fan - Wikipedia

   en.wikipedia.org/wiki/Prandtl–Meyer_expansion_fan

   The figure shows one such ideal expansion fan. A supersonic expansion fan, technically known as Prandtl–Meyer expansion fan, a two-dimensional simple wave, is a centered expansion process that occurs when a supersonic flow turns around a convex corner. The fan consists of an infinite number of Mach waves, diverging from a sharp corner. When a ...

4. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel).

5. Air-mixing plenum - Wikipedia

   en.wikipedia.org/wiki/Air-mixing_plenum

   Air streams are mixed to save energy and improve energy efficiency by partially recirculating conditioned air.. The most common application for an air-mixing plenum is the mixing of return air (or extract air) with fresh air to provide a supply air mixture for onward distribution to the building or area which the ventilation system is serving. [1]

6. American fans lightly boo 'O Canada' before 4 Nations Face ...

   www.aol.com/trump-calls-us-hockey-team-183329532...

   While the American fans lightly booed “O Canada” on Thursday night at the 4 Nations Face-Off hockey tournament, the Canadian singer ad libbed new lyrics as a response to President Donald Trump ...

7. The Taylor Swift Capsule Wardrobe: 11 Pieces You Need ... - AOL

   www.aol.com/taylor-swift-capsule-wardrobe-11...

   Whether she’s dazzling fans on stage in her tour ensembles or stepping out in her signature girly style (think: thigh-high boots and frilly dresses), Swift knows how to turn heads. And just when ...

8. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing ...

9. Shania Twain Says She Refuses to Be 'Put in a Box' in the ...

   www.aol.com/lifestyle/shania-twain-says-she...

   Shania Twain refuses to conform to one set thing.. In an exclusive interview with PEOPLE, the singer, 59, opens up about how she has never allowed herself to be contained within the music industry ...